Protect you and your loved ones against bad spirts and negative energy. Makes a great gift for you…friends...family.. Graduation, Sweet Sixteen, Birthday perfect for any occasion! All orders are nicely packaged, great for gift giving! Zinc alloy metal is a combination of zinc and other metals, such as aluminum, copper, magnesium, iron, nickel, or tin. The type of metals added and their quantities determine the properties of the alloy, which can be different from pure zinc or other components. Zinc alloys have many benefits, including: Good corrosion resistance Superior strength-to-weight ratio Light and strong Environmentally safe